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Chief components of Hill's reaction used in Blackman's reaction are
C.ATP and $NADPH_2$
D.All of the above

Last updated date: 16th Jun 2024
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Hint:Hill’s reaction is a light-dependent process occurring in the thylakoids of chloroplast. The energy produced through the light gets converted to energy molecules which is the end product. The energy molecules produced in hill’s reaction convert the carbon dioxide into glucose.

Complete answer:
1. Hill reaction or light reaction is a light-driven process which includes light absorption, water splitting, oxygen release, and the formation of high energy chemical intermediates, ATP, and $NADPH_2$.
2. Dark reaction, however, is not light-dependent but it is dependent on the products of light reactions i.e. ATP and $NADPH_2$.
3. The light reaction occurs on the thylakoids of the chloroplast. When the light enters, chlorophyll A gets excited to a higher state of energy and after this series of reactions are followed. The energy produced is converted to energy molecules $NADPH_2$ and ATP with the help of photosystem I and II. Oxygen is also formed during this process.
4. Dark reaction on the other hand occurs in the stroma of the chloroplast it uses the light reaction products. In this reaction, sugar molecules are produced from the water molecules and carbon dioxide. The products of light reaction i.e. $NADPH_2$ and ATP drives the process and converts carbon dioxide into glucose.
Hence, the correct answer is Option C i.e. ATP and $NADPH_2$.

Note: The final products formed at the end of the light reaction or Hill reaction are the energy molecule ATP $NADPH_2$ and oxygen molecules. The end product of light reactions is then used up in dark reactions to aid in the conversion of carbon dioxide into glucose.